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Scratch testing of metals and polymers: Experiments and numerics
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.), Solid Mechanics (Div.).
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.), Solid Mechanics (Div.).ORCID iD: 0000-0001-6232-8819
2009 (English)In: Wear, ISSN 0043-1648, E-ISSN 1873-2577, Vol. 266, no 1-2, 76-83 p.Article in journal (Refereed) Published
Abstract [en]

An experimental and numerical study of the scratch test performed on metals and polymers was conducted. The materials tested, being both metallic and polymeric, were related to the well known Johnson's parameter, often used to correlate indentation experiments. The aim was to determine whether it was possible to use the numerical approach presented by Wredenberg and Larsson [F. Wredenberg, P.-L Larsson, On the numerics and correlation of scratch testing, journal of Mechanics of Materials and Structures 2 (2006) 573-594] to describe the scratch mechanism and of course also to investigate whether or not important scratch quantities can be determined with sufficient accuracy from standard scratch experiments.

Place, publisher, year, edition, pages
2009. Vol. 266, no 1-2, 76-83 p.
Keyword [en]
Scratch test experiments, Finite element analysis, Contact, Metals, Polymers, 3-dimensional finite-element, sensitive hard metals, pyramid, indentation, mechanical analysis, deformations, ceramics, indenter, surface, cones
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-18040DOI: 10.1016/j.wear.2008.05.014ISI: 000261538800010Scopus ID: 2-s2.0-55249124755OAI: oai:DiVA.org:kth-18040DiVA: diva2:336086
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2011-01-17Bibliographically approved
In thesis
1. Mechanical modelling of surface scratching
Open this publication in new window or tab >>Mechanical modelling of surface scratching
2008 (English)Doctoral thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH, 2008. 23 p.
Series
Trita-HFL. Report / Royal Institute of Technology, Solid mechanics, ISSN 1654-1472 ; 0455
National Category
Applied Mechanics
Identifiers
urn:nbn:se:kth:diva-4885 (URN)
Public defence
2008-09-19, Sal B2, KTH, Brinnellvägen 23, Stockholm, 09:00 (English)
Opponent
Supervisors
Note

QC 20100922

Available from: 2008-09-16 Created: 2008-09-16 Last updated: 2013-01-14Bibliographically approved
2. Experimental and numerical analysis of scratching of homogeneous materials
Open this publication in new window or tab >>Experimental and numerical analysis of scratching of homogeneous materials
2006 (English)Licentiate thesis, comprehensive summary (Other scientific)
Abstract [en]

Paper A

Abstract

A numerical strategy based on the finite element method and intended for an accurate analysis of the scratch test is presented. For simplicity, but not out of necessity,the material was described by classical Mises elastoplasticity utilising large deformation theory. Based on this strategy numerous results are presented and correlation ofscratch properties is discussed within the framework of Johnson (1970, 1985) theoryfor indentation testing. Furthermore, the existence of a representative plastic strainin the spirit of Tabor (1951) was studied. The investigation also concerns details regarding frictional effects, normal vs. tangentional scratch hardness, similarities anddifferences between indentation and scratch test characteristics as well as detailsregarding the behaviour of local field variables at scratching.

key words: Scratch test, hardness, friction, finite elements, contact

Paper B

Abstract

An experimental and numerical study of the scratch test performed on metals andpolymers was conducted. The materials tested, being both metallic and polymeric,were related to the well known Johnson’s parameter, often used to correlate indentation experiments. The aim was to determine whether it was possible to use the numerical approach presented by Wredenberg and Larsson (2006) to describe the scratch mechanism and of course also to investigate whether or not important scratch quantities can be determined with sufficient accuracy from standard scratch experiments.

Key words: Scratch test experiments, finite element analysis, contact, metals,

polymers

Place, publisher, year, edition, pages
Stockholm: KTH, 2006. 13 p.
Series
Trita-HFL. Report / Royal Institute of Technology, Solid Mechanics, ISSN 1654-1472 ; 0417
National Category
Other Materials Engineering
Identifiers
urn:nbn:se:kth:diva-4107 (URN)
Presentation
2006-09-11, Sal F3, KTH, Lindstedtsvägen 26, Stockholm, 10:00
Opponent
Supervisors
Note

QC 20101124

Available from: 2006-09-19 Created: 2006-09-19 Last updated: 2013-01-15Bibliographically approved

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Larsson, Per-Lennart

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